I think no-one would call you there one pair hand and they would rather turn it into bluff and shove over your river bet
So question is would they ever call you two pair hands. He may call river KJ, although he may fold that hand also on the turn, so I don´t see worse hands calling your river bet, unless he decided to float you on KQ or is suspicious with KJ and that you don´t get blown off sometimes by better hand I think /c river seems reasonable. Seems like you´re giving up and even if he doesn´t turn his AJ into bluff you get information what hands he is calling on the flop and turn
But if you feel there are more hands his river calldown range than KJ/KQ then b/f river is also fine